Trolley.



No. 686,0I7. Patented Nov. 5, |901.

M. J. WILSUN.

TBULLEY.

(Application led Feb. 21,1901.)

(No Model.)

,Inf/enfer; ZUM,

UNITED STATES PATENT Orsini-3.V

MILFORD J. WILSON, OF PAINESVILLF., OHIO.

TROLLEY.

SEEGXFICAEION forming part of Letters Patent No. 686,017, dated November 5, 1901.

Application led February 21, 1901. Serial No. 48,211. (No model.)

To all whom t may concern:

Be it known that I, MILFORD J. WILSON, a citizen of the United States,residing atPainesville, in the county of Lake and State of Ohio, have invented a certain new and useful Improvementin Trolleys, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

The invention is an improvement in the class of trolleys in which the trolley-wheel housing is swiveled to the upper end of the pole on a substantially vertical axis, whereby the housing will turn automatically and allow the wheel to adapt itself to curves in the overheadconductor-wire and be thereby less liable to become disengaged therefrom.

The objects ofthe invention are to provide means to prevent the conductor-wires and guy-wires from being caught between the trolley-Wheel and the parts adjacent thereto, to the injury of such wires or the trolley, or both; to insure a perfect electric connection between the rotating trolley-wheel shaft and the non-rotating part of the trolley device; to provide for the automatic lubrication of the rotating shaft., and in general to provide an exceedingly practical and efficient trolley which is not liable in use to jump from the overhead wires.

ln the drawings, Figure l is a perspective View of the upper end of a trolley constructed in accordancewith my invention. Fig. 2 is a side elevation thereof. Fig. 3 is a plan View. Fig. 4 is aplan view when the trolleywheel is mounted and the housing is cut off near its base. Fig. 5 is a vertical transverse sectional view, and Fig. 6 is a sectional view of one of the movable boxes on line 6,6 of Fig. 5.

Referring to the parts by letters, A represents the trolley-pole, which may be of a suitable construction, adapted to be attached to the carin any of the usual Ways. At its upper extremity an end frame B is secured, preferably by means of a stem B, which is inserted and secured in the end of the pole A. This end frame passes beneath the trolley-Wheel O, and the part thereof directly beneath the trolley-axle is substantially horizontal when the trolley is in working posi- Two guard-arms b b', which are intetion.

gral parts of this end frame, are curved up in front of and behind the trolley-Wheel at suitable distances therefrom, and they prevent to a large extent the guy-wires from getting below the trolley-wheel and between it and the frame B. It would be possible, however, but for the preventive means provided, for the guy-wires to pass down between the trolley and the guard-arms. The preventive means provided are ribs b2 on the guard-arms, which project toward the trolley-Wheel past the peripheries of its flanges. In the best construction one rib is formed centrally on the inner face of each guard-arm, and it projects into the groove of the Wheel. When this construction is employed, the end frame may be easily and cheaply cast, and the ribs, if continued down the said guard-arms, as shown, will strengthen said frame. If desired, however, each guard-arm may have two ribs or fingers, which extendalong the sides of said wheel, as indicated by dotted lines in Fig. 3. An inclined member b5 extends from the top of the front guard-arm at an inclination down to the front end of said frame and is integral with the other parts of the frame. This part ofthe device causes the trolley, if it has left the main feed-wire, to pass beneath the guy-Wires without injuring them or being injured by them.

The housing D for the trolley has a substantially at base, which rests upon the horizontal part of the frame B and is swiveled thereto on a vertical pivot H, which permits the housing to turn freely. It has two substantially vertical standards d d, Whose upper ends are forked. Each fork supports a removable box E, in which the ends "of the trolley-wheel shaft c have their bearings. The trolley-wheel is fast to this shaft, and consequently when the device is in operation the shaft turns in its said bearings, which are cylindrical holes e in said boxes. These bearings may and frequently do become considerably worn, and except for the means hereinafter provided the electric connection between said shaft and boxes might not be continuous. The means shown consist of a fiat spring F, secured to each box and passing through a cored-out opening e' across one side of the shaft-bearing, which spring bears upon the shaft, however-much the shaft 01' 'through said duet. lby a screw-plug e6, whose top when it is `by screwing this valve up or down it may regulate the rapidity with which the oil flows The receptacle e2 is closed screwed down is below the top surface ot' said box. It will be noticed that the top surfaces of these boxes have a downward outward inclination, which causes them to slide otl the main cond uctor-wire if said tops chance to engage with said wires.

In the operation ot' this device the trolleyhousing turns yfreely on its swiveled connection with the end frame when the trolleywheel is engaging with a curved part of the conductorwire, and thus very greatly reduces the danger that said wheel may leave said wire. The extent to which said housing may turn on this vertical axis is limited by a suitable stop or stops carried by the frame B. These may be transverse shoulders b D6 on the base of the end frame, with which the bottom or base of the housing D engages. 'Ihe housing is returned to its normal position by two coil-springs .I J, which lie between a lug b4 on the end frame and the lugs cl2 cl2 on the housing.

I-Iaving described my invention, I claiml. In a trolley, an end frame, a trolley-wheel housing swiveled thereto on a vertical pivot, and having side standards, combined with boxes removably secured to said standards and each having a transverse hole for a shaftbearing, and a recess crossing the saine, a spring secured to said box and passing through said recess into said shaft-bearing, a trolleywheel shaft mounted in said shaft-bearing, and a trolley secured thereto between said boxes, substantially as specitied.

2. In a trolley,in combination,an end frame,

upward-extended guard-arms b b', the ribs b2 formed on their inner faces, and a lug integral with said frame and lying between said guard-arms, combined with a trolley-wheel housing swiveled to said frame between said guard-arms and having the lugs cl3 projecting on opposite sides of the lug b3, springs engaging with said lugs,a trolley-wheel shaft mounted in said housing, anda trolley-wheel secured to said shaft between said guard-arms and fingers, substantially as specied.

4. In a trolley, the combination of an end frame, a trolley-wheel housing swiveled thereto on a vertical pivot, boxes removably secured to the upper ends of the standards of said housing, said boxes having downwardly and outwardly inclined upper faces, and having also bearings for a shaft, with a shaft mounted in said bearings, and a trolley secured thereto, substantially as specified.

5. In a trolley, an end frame having an upwardly-extended guard-arm in front of the trolley, a rib on the inner face of said guardarm, and an inclined member connecting the top of said guard-arm with the front end of said end frame, combined with a rotatable trolley-wheel supported on said end frame behind said guard-arm and in such position relative thereto that the rib on said guard-arm shall project rearward behind the peripheries of the [ianges of said trolley-wheel, substantially as specified.

In testimony whereof I hereuntor affix my signature in the presence of two witnesses.

MILFO'RD' J. WILSON.

'Witnessesz E. L. THURsToN, E. B. GILCHRIST. 

